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Subjects
- Disease Outbreaks66
- Medicine61
- Yellow Fever60
- Disease30
- Philadelphia30
- Mexico28
- Philadelphia -- epidemiology28
- Medicine, Traditional26
- Materia Medica25
- Mortality21
- United States21
- Massachusetts15
- Military Medicine14
- Resuscitation13
- Smallpox -- prevention & control13
- Animal Husbandry12
- Charities11
- Equipment and Supplies10
- Fever10
- Forecasting10